/* roulang page: index */
:root {
            --primary: #1A6DF5;
            --primary-light: #EFF6FF;
            --primary-dark: #1558C9;
            --accent: #FF8C2A;
            --accent-dark: #E67A1E;
            --bg: #F8FAFC;
            --surface: #FFFFFF;
            --text-main: #1E293B;
            --text-muted: #64748B;
            --border-light: #E2E8F0;
            --shadow-card: 0 4px 14px rgba(0, 0, 0, 0.06);
            --shadow-elevated: 0 10px 30px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.12);
            --radius-card: 16px;
            --radius-btn: 8px;
            --radius-sm: 6px;
            --font-sans: 'Inter', 'Noto Sans SC', system-ui, -apple-system, 'Segoe UI', sans-serif;
            --max-w-text: 65ch;
            --nav-height: 64px;
            --section-gap: 5rem;
            --container-max: 1200px;
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            scroll-padding-top: var(--nav-height);
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            font-size: 1rem;
            line-height: 1.7;
            font-weight: 400;
            color: var(--text-main);
            background-color: var(--bg);
            min-height: 100vh;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            font-size: inherit;
        }

        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-btn);
            padding: 0.75rem 1rem;
            width: 100%;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
            background: var(--surface);
            color: var(--text-main);
            outline: none;
        }

        input:focus,
        textarea:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(26, 109, 245, 0.1);
        }

        textarea {
            resize: vertical;
            min-height: 120px;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        .section-pad {
            padding: var(--section-gap) 0;
        }

        .section-title {
            font-size: 2.25rem;
            font-weight: 800;
            line-height: 1.3;
            color: var(--text-main);
            text-align: center;
            margin-bottom: 0.75rem;
            letter-spacing: -0.02em;
        }

        .section-subtitle {
            font-size: 1.1rem;
            color: var(--text-muted);
            text-align: center;
            max-width: 580px;
            margin: 0 auto 3rem;
            line-height: 1.6;
        }

        /* ========== 导航 ========== */
        .site-nav {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            display: flex;
            align-items: center;
            background: rgba(255, 255, 255, 0.72);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid transparent;
            transition: background var(--transition-smooth), border-color var(--transition-smooth), box-shadow var(--transition-smooth);
        }

        .site-nav.scrolled {
            background: rgba(255, 255, 255, 0.96);
            border-bottom: 1px solid var(--border-light);
            box-shadow: 0 1px 6px rgba(0, 0, 0, 0.04);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        .nav-logo {
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.01em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .nav-logo-icon {
            width: 32px;
            height: 32px;
            background: var(--primary);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 2rem;
            list-style: none;
        }

        .nav-links a {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-main);
            position: relative;
            padding: 4px 0;
            transition: color var(--transition-fast);
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: width var(--transition-fast);
        }

        .nav-links a:hover,
        .nav-links a:focus-visible {
            color: var(--primary);
        }

        .nav-links a:hover::after,
        .nav-links a:focus-visible::after {
            width: 100%;
        }

        .nav-cta-btn {
            background: var(--accent);
            color: #fff;
            padding: 0.55rem 1.3rem;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 0.9rem;
            white-space: nowrap;
            transition: background var(--transition-fast), box-shadow var(--transition-fast);
        }

        .nav-cta-btn:hover {
            background: var(--accent-dark);
            box-shadow: 0 4px 16px rgba(255, 140, 42, 0.3);
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px 4px;
            cursor: pointer;
            z-index: 1001;
            background: none;
            border: none;
        }

        .hamburger span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--text-main);
            border-radius: 2px;
            transition: transform var(--transition-fast), opacity var(--transition-fast);
        }

        .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        .mobile-drawer {
            position: fixed;
            top: 0;
            right: -320px;
            width: 300px;
            height: 100vh;
            background: var(--surface);
            z-index: 999;
            box-shadow: -5px 0 30px rgba(0, 0, 0, 0.15);
            transition: right var(--transition-smooth);
            padding: 100px 2rem 2rem;
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }

        .mobile-drawer.open {
            right: 0;
        }

        .mobile-drawer a {
            font-size: 1.15rem;
            font-weight: 500;
            color: var(--text-main);
            padding: 0.4rem 0;
            border-bottom: 1px solid var(--border-light);
            transition: color var(--transition-fast);
        }

        .mobile-drawer a:hover {
            color: var(--primary);
        }

        .mobile-overlay {
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.4);
            z-index: 998;
            opacity: 0;
            pointer-events: none;
            transition: opacity var(--transition-smooth);
        }

        .mobile-overlay.show {
            opacity: 1;
            pointer-events: auto;
        }

        /* ========== Hero ========== */
        .hero-section {
            min-height: 90vh;
            display: flex;
            align-items: center;
            padding-top: var(--nav-height);
            background: var(--surface);
            position: relative;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -180px;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: var(--primary-light);
            opacity: 0.5;
            pointer-events: none;
        }

        .hero-grid {
            display: flex;
            align-items: center;
            gap: 3rem;
            width: 100%;
            position: relative;
            z-index: 1;
        }

        .hero-left {
            flex: 1.2;
            max-width: 580px;
        }

        .hero-right {
            flex: 1;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
        }

        .hero-right img {
            width: 100%;
            max-width: 520px;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-lg);
            animation: float 6s ease-in-out infinite;
        }

        @keyframes float {
            0%,
            100% {
                transform: translateY(0);
            }
            50% {
                transform: translateY(-16px);
            }
        }

        .hero-badge {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-weight: 600;
            font-size: 0.85rem;
            padding: 0.4rem 1rem;
            border-radius: 20px;
            margin-bottom: 1.25rem;
            letter-spacing: 0.01em;
        }

        .hero h1 {
            font-size: 3rem;
            font-weight: 900;
            line-height: 1.2;
            color: var(--text-main);
            letter-spacing: -0.03em;
            margin-bottom: 1.25rem;
        }

        .hero-desc {
            font-size: 1.15rem;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: var(--max-w-text);
            margin-bottom: 2rem;
        }

        .hero-actions {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
            margin-bottom: 2rem;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 0.8rem 1.8rem;
            font-weight: 600;
            font-size: 0.95rem;
            border-radius: var(--radius-btn);
            transition: all var(--transition-fast);
            letter-spacing: 0.01em;
            white-space: nowrap;
            cursor: pointer;
            text-align: center;
        }

        .btn-primary {
            background: var(--accent);
            color: #fff;
            border: none;
            box-shadow: 0 4px 14px rgba(255, 140, 42, 0.25);
        }

        .btn-primary:hover {
            background: var(--accent-dark);
            box-shadow: 0 6px 22px rgba(255, 140, 42, 0.35);
            transform: translateY(-1px);
        }

        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }

        .btn-outline:hover {
            background: var(--primary-light);
            border-color: var(--primary-dark);
            color: var(--primary-dark);
        }

        .btn-lg {
            padding: 0.95rem 2.2rem;
            font-size: 1rem;
        }

        .trust-row {
            display: flex;
            gap: 1.5rem;
            flex-wrap: wrap;
            align-items: center;
            color: var(--text-muted);
            font-size: 0.85rem;
            font-weight: 500;
        }

        .trust-row span {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .trust-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #22C55E;
            flex-shrink: 0;
        }

        .trust-icon {
            font-size: 1.1rem;
        }

        /* ========== 亮点网格 ========== */
        .highlights-section {
            background: var(--bg);
        }

        .highlights-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 32px;
            max-width: 1000px;
            margin: 0 auto;
        }

        .highlight-card {
            background: var(--surface);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            padding: 32px 28px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-fast);
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .highlight-card:hover {
            box-shadow: var(--shadow-elevated);
            transform: translateY(-4px);
            border-color: transparent;
        }

        .highlight-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            flex-shrink: 0;
        }

        .highlight-icon.blue {
            background: var(--primary-light);
            color: var(--primary);
        }
        .highlight-icon.orange {
            background: #FFF7ED;
            color: var(--accent);
        }

        .highlight-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-main);
        }

        .highlight-card p {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.65;
        }

        /* ========== 案例瀑布 ========== */
        .case-section {
            background: var(--surface);
        }

        .case-masonry {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 20px;
            grid-auto-flow: dense;
        }

        .case-card {
            background: var(--surface);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-fast);
            display: flex;
            flex-direction: column;
            cursor: default;
        }

        .case-card:hover {
            box-shadow: var(--shadow-elevated);
            transform: translateY(-4px);
            border-color: transparent;
        }

        .case-card:hover .case-img img {
            transform: scale(1.04);
        }

        .case-card.tall {
            grid-row: span 2;
        }

        .case-card.wide-tall {
            grid-row: span 2;
        }

        .case-img {
            overflow: hidden;
            position: relative;
            width: 100%;
            background: #e8ecf1;
        }

        .case-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
            display: block;
        }

        .case-card:nth-child(1) .case-img {
            height: 220px;
        }
        .case-card:nth-child(2) .case-img {
            height: 300px;
        }
        .case-card:nth-child(3) .case-img {
            height: 250px;
        }
        .case-card:nth-child(4) .case-img {
            height: 320px;
        }
        .case-card:nth-child(5) .case-img {
            height: 240px;
        }
        .case-card:nth-child(6) .case-img {
            height: 280px;
        }

        .case-body {
            padding: 20px 18px;
            display: flex;
            flex-direction: column;
            gap: 8px;
            flex: 1;
        }

        .case-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            padding: 3px 10px;
            border-radius: 12px;
            align-self: flex-start;
            letter-spacing: 0.02em;
        }

        .case-body h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.4;
        }

        .case-body p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.55;
        }

        .case-stat {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--accent);
            margin-top: 4px;
        }

        /* ========== 方案对比 ========== */
        .compare-section {
            background: var(--bg);
        }

        .compare-grid {
            display: flex;
            gap: 28px;
            max-width: 960px;
            margin: 0 auto;
            align-items: stretch;
        }

        .compare-card {
            flex: 1;
            background: var(--surface);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            padding: 36px 28px;
            box-shadow: var(--shadow-card);
            display: flex;
            flex-direction: column;
            gap: 16px;
            position: relative;
            transition: all var(--transition-fast);
        }

        .compare-card:hover {
            box-shadow: var(--shadow-elevated);
            transform: translateY(-2px);
        }

        .compare-card.pro {
            border: 2px solid var(--primary);
            box-shadow: var(--shadow-elevated);
        }

        .compare-badge {
            position: absolute;
            top: -14px;
            right: 20px;
            background: var(--accent);
            color: #fff;
            font-weight: 700;
            font-size: 0.8rem;
            padding: 5px 14px;
            border-radius: 14px;
            letter-spacing: 0.03em;
            box-shadow: 0 4px 12px rgba(255, 140, 42, 0.3);
        }

        .compare-card h3 {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--text-main);
        }

        .compare-price {
            font-size: 2.2rem;
            font-weight: 900;
            color: var(--text-main);
        }

        .compare-price small {
            font-size: 0.9rem;
            font-weight: 400;
            color: var(--text-muted);
        }

        .compare-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
            flex: 1;
        }

        .compare-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 0.95rem;
            color: var(--text-main);
            line-height: 1.5;
        }

        .compare-list li .check {
            color: #22C55E;
            font-weight: 700;
            flex-shrink: 0;
            margin-top: 1px;
        }
        .compare-list li .minus {
            color: #CBD5E1;
            font-weight: 700;
            flex-shrink: 0;
            margin-top: 1px;
        }

        .compare-cta-row {
            text-align: center;
            margin-top: 2rem;
            font-size: 0.95rem;
            color: var(--text-muted);
        }

        .compare-cta-row a {
            color: var(--primary);
            font-weight: 600;
            transition: color var(--transition-fast);
        }
        .compare-cta-row a:hover {
            color: var(--primary-dark);
            text-decoration: underline;
        }

        /* ========== FAQ ========== */
        .faq-section {
            background: var(--surface);
        }

        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--bg);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all var(--transition-fast);
        }

        .faq-item.open {
            background: var(--surface);
            border-color: var(--primary);
            box-shadow: var(--shadow-card);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-main);
            text-align: left;
            gap: 16px;
            cursor: pointer;
            transition: color var(--transition-fast);
            background: none;
            border: none;
            font-family: inherit;
        }

        .faq-question:hover {
            color: var(--primary);
        }

        .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            font-weight: 700;
            flex-shrink: 0;
            transition: all var(--transition-fast);
        }

        .faq-item.open .faq-icon {
            background: var(--primary);
            color: #fff;
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 24px;
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        /* ========== 最终 CTA 横条 ========== */
        .final-cta {
            background: var(--primary-light);
            text-align: center;
            border-radius: 0;
        }

        .final-cta-inner {
            max-width: 680px;
            margin: 0 auto;
        }

        .final-cta h2 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 0.75rem;
            letter-spacing: -0.02em;
        }

        .final-cta p {
            font-size: 1.05rem;
            color: var(--text-muted);
            margin-bottom: 2rem;
        }

        /* ========== 联系表单 ========== */
        .contact-section {
            background: var(--bg);
        }

        .contact-card {
            max-width: 600px;
            margin: 0 auto;
            background: var(--surface);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            padding: 40px 32px;
            box-shadow: var(--shadow-card);
        }

        .contact-card h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 0.5rem;
        }

        .contact-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-bottom: 1.5rem;
        }

        .form-group {
            margin-bottom: 1.1rem;
        }

        .form-group label {
            display: block;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text-main);
            margin-bottom: 0.35rem;
        }

        .form-submit {
            width: 100%;
            padding: 0.9rem;
            background: var(--accent);
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            border: none;
            border-radius: var(--radius-btn);
            cursor: pointer;
            transition: all var(--transition-fast);
            letter-spacing: 0.02em;
            box-shadow: 0 4px 14px rgba(255, 140, 42, 0.25);
            margin-top: 0.5rem;
        }

        .form-submit:hover {
            background: var(--accent-dark);
            box-shadow: 0 6px 22px rgba(255, 140, 42, 0.35);
            transform: translateY(-1px);
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: #1E293B;
            color: #CBD5E1;
            padding: 3.5rem 0 1.5rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 2rem;
            margin-bottom: 3rem;
        }

        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 700;
            color: #F1F5F9;
            margin-bottom: 1rem;
            letter-spacing: 0.03em;
            text-transform: uppercase;
        }

        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0.55rem;
        }

        .footer-col ul li {
            font-size: 0.9rem;
            color: #94A3B8;
            transition: color var(--transition-fast);
            cursor: pointer;
        }

        .footer-col ul li:hover {
            color: #E2E8F0;
        }

        .footer-col ul li a {
            color: inherit;
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: #E2E8F0;
        }

        .footer-bottom {
            border-top: 1px solid #334155;
            padding-top: 1.5rem;
            text-align: center;
            font-size: 0.85rem;
            color: #64748B;
        }

        .footer-bottom strong {
            color: #CBD5E1;
            font-weight: 600;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .hero h1 {
                font-size: 2.4rem;
            }
            .hero-grid {
                gap: 2rem;
            }
            .section-title {
                font-size: 1.9rem;
            }
            .highlights-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-gap: 3.5rem;
            }
            .nav-links {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .hero-section {
                min-height: auto;
                padding-top: calc(var(--nav-height) + 2rem);
                padding-bottom: 2rem;
            }
            .hero-grid {
                flex-direction: column-reverse;
                text-align: center;
            }
            .hero-left {
                max-width: 100%;
            }
            .hero h1 {
                font-size: 2rem;
            }
            .hero-desc {
                font-size: 1rem;
                margin-left: auto;
                margin-right: auto;
            }
            .hero-actions {
                justify-content: center;
            }
            .trust-row {
                justify-content: center;
            }
            .hero-right img {
                max-width: 380px;
            }
            .section-title {
                font-size: 1.7rem;
            }
            .section-subtitle {
                font-size: 1rem;
            }
            .highlights-grid {
                grid-template-columns: 1fr;
                max-width: 440px;
            }
            .case-masonry {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .case-card.tall,
            .case-card.wide-tall {
                grid-row: span 1;
            }
            .case-card:nth-child(1) .case-img,
            .case-card:nth-child(2) .case-img,
            .case-card:nth-child(3) .case-img,
            .case-card:nth-child(4) .case-img,
            .case-card:nth-child(5) .case-img,
            .case-card:nth-child(6) .case-img {
                height: 180px;
            }
            .compare-grid {
                flex-direction: column;
                max-width: 440px;
            }
            .compare-badge {
                right: 16px;
                top: -12px;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1.5rem;
            }
            .final-cta h2 {
                font-size: 1.5rem;
            }
            .contact-card {
                padding: 28px 20px;
            }
        }

        @media (max-width: 480px) {
            .hero h1 {
                font-size: 1.7rem;
            }
            .hero-desc {
                font-size: 0.95rem;
            }
            .hero-right img {
                max-width: 280px;
            }
            .btn {
                padding: 0.7rem 1.3rem;
                font-size: 0.9rem;
            }
            .section-title {
                font-size: 1.45rem;
            }
            .case-masonry {
                grid-template-columns: 1fr;
            }
            .case-card:nth-child(1) .case-img,
            .case-card:nth-child(2) .case-img,
            .case-card:nth-child(3) .case-img,
            .case-card:nth-child(4) .case-img,
            .case-card:nth-child(5) .case-img,
            .case-card:nth-child(6) .case-img {
                height: 200px;
            }
            .compare-card {
                padding: 24px 18px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1.2rem;
            }
            .highlight-card {
                padding: 22px 18px;
            }
            .faq-question {
                padding: 14px 16px;
                font-size: 0.95rem;
            }
            .faq-answer {
                padding: 0 16px;
            }
            .faq-item.open .faq-answer {
                padding: 0 16px 16px;
            }
        }